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公开(公告)号：US06205789B1
公开(公告)日：2001-03-27
申请号：US09191558
申请日：1998-11-13
IPC分类号： F23R306
CPC分类号： F23R3/002 , F23R3/06 , Y02T50/675
摘要： Multi-hole film cooling of combustor liners is enhanced by providing clustered groups of cooling holes in areas of the liners that would otherwise experience a loss of cooling film effectiveness. The combustor liner is made up of a shell having first and second groups of cooling holes formed therein. The cooling holes of the second group are more closely spaced than the cooling holes of the first group. The second group of cooling holes is located on an area of the shell where the cooling film effectiveness is degraded. Preferred locations include a region of the shell that is subjected to swirl impingement and a spot immediately downstream of a large opening in the shell such as a dilution hole, a borescope hole or an igniter port hole.
摘要翻译： 通过在衬垫的区域中提供集群的冷却孔来增强燃烧器衬套的多孔膜冷却，否则其将经历冷却膜效率的损失。 燃烧器衬套由壳体构成，其中形成有第一组和第二组冷却孔。 第二组的冷却孔比第一组的冷却孔更紧密地间隔开。 第二组冷却孔位于壳体的冷却膜有效性降低的区域上。 优选的位置包括经受漩涡冲击的壳体的区域和紧邻壳体中的大开口的下游的点，例如稀释孔，孔镜孔或点火器孔口孔。
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公开(公告)号：US6145319A
公开(公告)日：2000-11-14
申请号：US116509
申请日：1998-07-16
CPC分类号： F23R3/002
摘要： A combustor liner includes a wall having an outboard surface and an opposite inboard surface. A plurality of first holes are inclined through the wall in a multihole pattern to channel cooling fluid therethrough to form a cooling film layer along the inboard surface. A second hole extends perpendicularly through the wall within the multihole pattern to form a shadow along the inboard surface devoid of the first holes. A transition hole extends through the wall in the shadow at a greater inclination than the first holes for cooling the wall at the shadow.
摘要翻译： 燃烧器衬套包括具有外侧表面和相对内侧表面的壁。 多个第一孔以多孔图案倾斜穿过壁以将冷却流体通过其中，以沿着内侧表面形成冷却膜层。 第二孔垂直地延伸穿过多孔图案内的壁，以形成沿着没有第一孔的内侧表面的阴影。 过渡孔在阴影中以比第一孔更大的倾斜度延伸穿过墙壁，以在阴影处冷却壁。
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